Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Charlestown is from May, June, August. — consistent weather climate
🌦Humid
| Score | 11 | 13 | 14 | 33 | 81 | 79 | 77 | 81 | 79 | 61 | 28 | 11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Polar | Polar | Cold | Cold | Mild | Humid | Humid | Humid | Humid | Cool & rainy | Cold | Cold |
| Temperature | -5–3°C | -5–4°C | -2–7°C | 4–13°C | 10–19°C | 15–24°C | 19–28°C | 18–27°C | 15–23°C | 9–17°C | 2–11°C | -2–6°C |
| Feels like | -11–-2°C | -11–0°C | -7–3°C | 0–10°C | 7–18°C | 14–25°C | 20–30°C | 19–29°C | 14–23°C | 6–15°C | -2–7°C | -7–1°C |
| Precipitation | 103mm 10 days | 87mm 10 days | 110mm 11 days | 110mm 11 days | 81mm 9 days | 93mm 10 days | 108mm 10 days | 83mm 9 days | 112mm 8 days | 119mm 10 days | 84mm 8 days | 123mm 10 days |
| Sunshine | 6.0h ☀︎ 63% | 6.8h ☀︎ 64% | 7.9h ☀︎ 66% | 8.0h ☀︎ 60% | 9.7h ☀︎ 67% | 11.3h ☀︎ 74% | 11.5h ☀︎ 77% | 10.9h ☀︎ 79% | 8.9h ☀︎ 72% | 7.5h ☀︎ 68% | 6.6h ☀︎ 67% | 5.7h ☀︎ 63% |
| Wind | W · 23 km/h | W · 23 km/h | W · 24 km/h | W · 23 km/h | S · 21 km/h | SW · 20 km/h | SW · 18 km/h | SW · 18 km/h | W · 19 km/h | W · 20 km/h | W · 22 km/h | W · 21 km/h |
| Humidity (%) | 67% | 69% | 67% | 69% | 70% | 72% | 73% | 73% | 76% | 76% | 70% | 72% |
| Day length | 9.5h | 10.6h | 12.0h | 13.4h | 14.6h | 15.2h | 14.9h | 13.8h | 12.5h | 11.0h | 9.8h | 9.1h |